Why Does Chopping Onions Drive Us To Tears?

Tears and a runny nose? Looks like that recipe called for freshly chopped onion! What is it about onions that sends our tear ducts into overdrive?

Onions Are Full Of Sulfur

As onions grow, they absorb sulfur from the soil. Onions also contain special enzymes that lie in reserve, ready to break down those sulfurous molecules.

The sulfurous molecules and enzymes remain separated until that first chop, when the sulfur and enzymes combine in a reaction that creates sulfenic acid. This acid quickly evaporates into a gas, which wafts up into our eyes.

Chop Like A Pro To Minimize Tear Time!

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Our Eyes Have Amazing Defenses

The more people know about their eyes, the more they respect the incredible things eyes can do. It’s always our goal to help protect your vision by providing the best diagnosis, treatment, and preventive care.

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